\documentclass[a4paper,11pt]{article}

% Also allow to change to "Backend Library" if needed
\newcommand{\BL}{"Black Library"}

% Will be used by sec-documentation-control
\newcommand{\doctype}{Cahier des charges}
\newcommand{\docversion}{1.0}
\newcommand{\docref}{CDC\_2012\_FR\_Rathaxes}
\newcommand{\docstatus}{En attente de validation}

\usepackage[utf8]{inputenc}
\usepackage[american]{babel}
\usepackage{array,
            fancyhdr,
            graphicx,
            indentfirst}
\usepackage[pdftex,
            colorlinks=true,
            pdftitle={Cahiers des charges 2012 Rathaxes},
            pdfauthor={Équipe Rathaxes 2012}]{hyperref}

\pagestyle{fancy}
\lhead{\includegraphics[height=1.2cm]{../images/logo_epitech}}
\chead{Rathaxes \\ \doctype}
\rhead{\includegraphics[height=1.2cm]{../images/logo_rathaxes}}

\setlength{\headheight}{38.22325pt} % there I fixed it

\title{Cahier des charges 2012 Rathaxes}
\author{Équipe Rathaxes 2012}

\begin{document}

\input{titlepage}

\include{sec-documentation-control}

\tableofcontents
\newpage

\input{sec-introduction}
\input{sec-context}
\input{sec-objectives}
\input{sec-requirements}
\input{sec-project-control}
\input{bibliography}

\end{document}
